Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; malachite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale BM
Quadrangle map, 1:63,360-scale D-2
Latitude 67.87
Longitude -159.77
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is at an elevation of about 2,100 feet on a divide halfway between Kanaktok Mountain and VABM Chevron (Grybeck, 1977). It is in section 34, T. 29 N., R. 5 W., of the Kateel River Meridian.

Geologic setting

Geologic description

This occurrence consists of sulfide-bearing quartz lenses in Upper Devonian phyllite (Schmidt and Allegro, 1988). The lenses contain pyrite, chalcopyrite, and a little malachite. The mineral-bearing zone occurs in an area of about 100 feet by 6 feet. Assays of grab samples indicate an average grade of 0.37 percent copper (Degenhart and others, 1978).
Geologic map unit (-159.772914925856, 67.8694079509376)
Mineral deposit model Kipushi Cu-Pb-Zn (Cox and Singer, 1986; model 32c).
Mineral deposit model number 32c
Age of mineralization Devonian?

Production and reserves

Workings or exploration The site has been visited and sampled by the U.S. Geological Survey (Schmidt and Allegro, 1988) and U.S. Bureau of Mines (Degenhart and others, 1978).
Indication of production None
Reserve estimates The inferred tonnage and grade are very small. The potential for significant tonnage of material assaying more than 0.4 percent copper is considered remote (Degenhart and others, 1978).

Additional comments

The occurrence is located in the Noatak Wilderness of the Noatak National Preserve.